Cereal grains

Cereals, grains, or cereal grains are grasses (members of the monocot families Poaceae or Gramineae) cultivated for the edible components of their fruit seeds (botanically, a type of fruit called a caryopsis): the endosperm, germ, and bran. Cereal grains are grown in greater quantities and provide more food energy worldwide than any other type of crop. Widely cultivated by humans only in the last 10,000 to 25,000 years, grains are considered by many Paleolithic dieters to be the primary Neolithic agents of disease.

True cereals

 * Wheat
 * Spelt wheat
 * Einkorn wheat
 * Emmer wheat
 * Durum wheat
 * Maize
 * Rice
 * Barley
 * Sorghum
 * Millet
 * Oats
 * Rye
 * Triticale
 * Fonio
 * Wild rice

Pseudocereals

 * Buckwheat
 * Quinoa
 * Amaranth

Paleolithic views
The abstention from cereal grains is a cornerstone of nearly all Paleolithic diets.